/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.druid.query.aggregation.datasketches.kll;

import org.apache.datasketches.kll.KllFloatsSketch;
import org.apache.druid.segment.ColumnValueSelector;

import java.nio.ByteBuffer;

public class KllFloatsSketchBuildBufferAggregator
    extends KllSketchBuildBufferAggregator<KllFloatsSketch, Float>
{
  public KllFloatsSketchBuildBufferAggregator(
      final ColumnValueSelector<Float> valueSelector,
      final int size,
      final int maxIntermediateSize
  )
  {
    super(valueSelector, new KllFloatsSketchBuildBufferAggregatorHelper(size, maxIntermediateSize));
  }

  @Override
  public void aggregate(final ByteBuffer buffer, final int position)
  {
    if (selector.isNull()) {
      return;
    }

    final KllFloatsSketch sketch = helper.getSketchAtPosition(buffer, position);
    sketch.update(selector.getFloat());
  }

}
